HAMILTON — An 18-year-old western Montana high school student is charged with intimidation and assault with a weapon after reportedly making numerous threats to "shoot up the school."

Maclean William Kayser of Darby was charged Tuesday in Ravalli County Justice Court. His bail was set at $50,000. He has not entered a plea.

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Alumni of Marjory Stoneman Douglas High School banded together to share a powerful message with the world: "Change has to happen, and Douglas is gonna be the school that makes it happen."
USA TODAY

Court records say he told investigators he was joking and regretted frightening students.

Witnesses reported Kayser said on Feb. 12 or 13 that he was going to commit a school shooting and that students wearing a red shirt would be spared while those wearing yellow would be targeted. A Feb. 15 Snapchat post referred to the Florida school shooting a day earlier and was captioned "soon coming to Darby."

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In a show of solidarity, students from West Boca Raton High School walked out of their classrooms Tuesday, bound for Marjory Stoneman Douglas High School in nearby Parkland, where 17 students were gunned down in their classrooms last week. (Feb. 20)
AP

School officials reported the threats to law enforcement on Feb. 18. Kayser was arrested the next day.